Bug 1255854

Summary:	Unable to connect to Gnome using VNC
Product:	Red Hat Enterprise Linux 7	Reporter:	Joe Wright <jwright>
Component:	mesa	Assignee:	Dave Airlie <airlied>
Status:	CLOSED WONTFIX	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.1	CC:	cww, jmunilla, jwright, tpelka
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-12-01 16:44:02 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Joe Wright 2015-08-21 17:21:02 UTC

Description of problem:
- unable to connect to RHEL 7.1 systems running Gnome using VNC
- VNC connecting to KDE works fine

Version-Release number of selected component (if applicable):
- 7.1GA and above

How reproducible:
100%

Steps to Reproduce:
1. Install and configure Gnome, vncserver, xorg
2. Configure VNC for Gnome per https://access.redhat.com/solutions/966063 
3. Attempt to connect using vncclient on anything but RHEL 7

Actual results:
- Connection fails

Expected results:
- Successful connection

Additional info:
- Appears to be a GLX issue.

Comment 1 Joe Wright 2015-08-21 17:22:42 UTC

[root@s0140865 /]# gnome-session

** (gnome-session-check-accelerated:4820): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-XCuG5Fk                                3dF: Connection refused
gnome-session-is-accelerated: No composite extension.
gnome-session-check-accelerated: Helper exited with code 256

** (gnome-session-check-accelerated:4822): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-XCuG5Fk                                3dF: Connection refused
gnome-session-is-accelerated: No composite extension.
gnome-session-check-accelerated: Helper exited with code 256

** (process:4815): WARNING **: software acceleration check failed: Child process exited with code 1

** (gnome-session:4815): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-XCuG5Fk3dF: Connection refused

Comment 2 Dave Airlie 2015-11-09 22:41:58 UTC

does this still happen with RHEL7.2?

I'm not sure why Xvnc doesn't support composite here, it should.